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bulk-source or bulk-drain junction diode forward biased :-(

Charanraj Mohan

Hey,

 I am translating few schematics from 0.35um to 130nm. I found the difficulty in encountering warnings like 'the bulk-source or the bulk-drain junction diode is missing and it is forward biased'. How to encounter these critical warning where the simulations go abnormal. This happens only during a small time of the transient simulation. I don't need to use a bulk connection, rather how to tackle these kinda warnings ? I surfed a lot and couldn't find a right way or approach to tackle these in the schematic level. I am grateful to know if any such exists.

Thanks in advance.

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  • Andrew Beckett

    There are lots of tuning parameters in spectre, but without knowing the specifics of your issue, I don't think I can offer much advice. Perhaps you can contact customer support so that an Application Engineer can look at your setup and what's going on?

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    There are lots of tuning parameters in spectre, but without knowing the specifics of your issue, I don't think I can offer much advice. Perhaps you can contact customer support so that an Application Engineer can look at your setup and what's going on?

    Regards,

    Andrew.

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